package im.angry.openeuicc.core

import android.content.Context
import android.se.omapi.SEService
import android.util.Log
import im.angry.openeuicc.util.*
import java.lang.IllegalArgumentException

open class DefaultEuiccChannelFactory(protected val context: Context) : EuiccChannelFactory {
    private var seService: SEService? = null

    private suspend fun ensureSEService() {
        if (seService == null) {
            seService = connectSEService(context)
        }
    }

    override suspend fun tryOpenEuiccChannel(port: UiccPortInfoCompat): EuiccChannel? {
        if (port.portIndex != 0) {
            Log.w(DefaultEuiccChannelManager.TAG, "OMAPI channel attempted on non-zero portId, this may or may not work.")
        }

        ensureSEService()

        Log.i(DefaultEuiccChannelManager.TAG, "Trying OMAPI for physical slot ${port.card.physicalSlotIndex}")
        try {
            return EuiccChannel(port, OmapiApduInterface(seService!!, port))
        } catch (e: IllegalArgumentException) {
            // Failed
            Log.w(
                DefaultEuiccChannelManager.TAG,
                "OMAPI APDU interface unavailable for physical slot ${port.card.physicalSlotIndex}."
            )
        }

        return null
    }

    override fun cleanup() {
        seService?.shutdown()
        seService = null
    }
}